First introduced in 1962, early LEDs emitted high-intensity red light and were used as indicator lights for many years.
Answer the following statement true (T) or false (F)
False
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_______is the ratio of measuring units expressing a proportional relationship between a drawing and the full-size items the drawing represents.
Fill in the blank(s) with the appropriate word(s).
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What form of gasoline is the most dangerous, liquid or vapor? (Circle one.)
What will be an ideal response?
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What are some bacterial diseases of birds, the symptoms, and the treatments for them?
What will be an ideal response?
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Agricultural mechanization was the single most important reason for increased food production in the 20th century.
Answer the following statement true (T) or false (F)
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